Hill iron oxidecoppergold iocg deposit discovered by minotaur resources in 2001. The white tank mountains are one of many mountain ranges in the basin and range physiographic province of arizona. Thus, it is likely that the same fluorinerich and oxidizing hydrothermal fluids that formed the olympic dam iocg deposits remained active as the plume track migrated to the north east and generated the cloncurry belt iocg mineralisation. Copper provinces geology and genesis of major copper. The study area is the manganese deposits of vizianagramvisakhapatnam manganese belt of andhra pradesh. Iocg knowledge cube iocg systems of south australia. Cobaltstyles of deposits and the search for primary deposits. Drilled due to large negative magnetic anomaly drilling found intermediate volcanics with low susceptibility. Gillen, david 2010 a study of iocgrelated hydrothermal fluids in the wernecke mountains, yukon territory, canada. As a mining interested learner, the geology of porphyry copper deposits is vital to your education now in the first exploration geology course i discussed how because our current mining technology all the metals that we use. Pdf iron oxide coppergold iocg mineralization at the imiter. Williams, smart science for exploration and mining, proceedings of the 10th biennial meeting of the society for geology applied to mineral deposits, egru, james cook university, townsville, australia, p. The discovery of the olympic dam, and its definition as a new type of copper deposit with important resources and other commodities fe, au, u and iron oxidecoppergold iocg deposits, has caused great interest in formation processes and characteristic guidelines that are useful for their exploration.
Since the discovery of the supergiant olympic dam deposit in australia in 1975, iron oxide coppergold iocg deposits have become the largest producer of uranium hitzman and valenta, 2005, skirrow, 2011, the third producer of copper sillitoe, 2012 and significant producer of gold kerrich et al. See discussions, stats, and author profiles for this publication at. Iocg workshop, feb 2006 geoscience australia prominent hill minotaur exploration website prominent hill minotaur exploration website fe oxide cuau iocg deposits. Iocg iron oxide copper gold ore deposits goes with porphyries as they are also loosely associated with a large felsic intrusions and form at moderate depths, unlike the dominantly tertiary porphyries iocg s tend to be much older and are generally protoizoic in age from 1. The geologic histroy of the iocg deposits in southwestern china. Blaike geophysical interpretation and modelling of the 3d structural architecture of the batten fault zone, southeastern mcarthur basin roger skirrow. Pdf on jan 1, 2016, zhimin zhu and others published gold in iron oxide coppergold deposits find, read and cite all the research you need on researchgate.
Independent expert report indicates a large iocg freda. Iron oxide coppergold iocg deposits through earth history. Iocg mineralisation and alteration roger skirrow gawler project leader iocg workshop adelaide, 24 february 2006. Metasedimentary cobaltcoppergold deposits such as blackbird, idaho, iron oxidecoppergold deposits, and the fiveelement vein deposits such as cobalt, ontario contain different amounts of cobalt. Since oxiana resources who later became oz minerals in 2008 acquired prominent hill and the associated mt woods exploration package in 2004, no economic mineral deposits have been found despite a significant exploration effort. Knowledge we have built up in sa to find iocg deposits should be applied to. Fe, cu, au, ba, co and ni, and the fact that most deposits are not amenable to conventional radiometric age dating, an indirect assessment of the relative timing of mineralization is required. Gillen, david 2010 a study of iocgrelated hydrothermal. The geologic histroy of the iocg deposits in southwestern. Here lets understand the geology of porphyries and iron oxide copper gold deposits or iocg as they are known. Alteration vectoring to iocgu deposits in frontier.
Till indicator mineral and geochemical signatures of. Porter geoconsultancy continued its international study tour series of professional development courses by visiting a representative selection of the most significant iron oxide coppergold uranium deposits within australia, supported by expert workshops and field workshops outlining their occurrence and setting. The deposit type was first recognised, though not named as iocg, by discovery and study of the supergiant olympic dam coppergolduranium deposit olympic dam mine, and south american examples. The olympic cuau province also hosts a range of other iron oxidecoppergold iocg deposits including prominent hill. Integrating a minerals systems approach with machine. Diversity of gold deposits, geodynamics and conditions of. Mcqueen crc leme, australian national university, canberra, act 0200 and school of rehs, university of canberra, act 2601.
Hitzman, 2000, and during the last few years exploration for iocg type of cuau deposits has intensified in the northern part of the fennoscandian shield. Considering iocgu deposit generation in continental. The magnetic anomalies of iocg deposits are widely variable. Summary of deposits survey filing for june 30, 2016 printable format. Mcqueen crc leme, australian national university, canberra, act 0200 and school of. Feoxcuau class of deposits has become a prime target for explo ration. Fall 2015 arizona geological society field trip guide. Exploration for skarn deposits major deposits and new strategies arianne ford fit for purpose. Iron oxide coppergold iocg deposits are consequences of lithospheric to depositscale earth processes, and form where there was a coincidence of oreforming processes in space and time. Gold occurs in a wide range of deposit types and settings. Iocgtype deposits have been widely described for the coastal cordillera of northern chile 1, where they appear to have a strong spatial and temporal relationship with the atacama fault system 2, 3, 4, 5. During the latter part of the phanerozoic, numerous iron oxidecuau iocg systems formed in parts of the cordillera of north and south america. The summary of deposits sod is the annual survey of branch office deposits as of june 30 for all fdicinsured institutions, including insured u.
In the norrbotten region, ioa deposits are restricted to the kiruna and gallivare areas, whereas the iocg deposits are found in the karelian greenstones and in volcanic rocks of svecofennian age wanhainen at al. Compositions of magnetite and sulfides from barren and mineralized iocg deposits in the eastern succession of the mt isa inlier, australia rusk, brian g. Description iron oxide cuau deposits are veins and brecciahosted bodies of. In canada, the largest iocg deposit is the 42 mt nico deposit lou lake of the cloncurry subtype, while the 17 mt sue dianne deposit of the olympic dam subtype contains met als comparable to those of the starra deposit in the cloncurry district table 2. Note the close proximity of the golden mile and the little. A descriptive definition of a diverse class fe oxide cuau iocg deposits. Iocg prospectivity modelling in namibia and zambia using. Now in the first exploration geology course i discussed how because our.
The metamorphic reconstruction type ore and rich orebearing layer in lala and dahongshan deposits were formed in 1. In several genetic schemes for the iocg family of deposits, kirunatype apatiteiron ores have been suggested as an fe oxide dominated endmember e. Descriptive and gradetonnage models and database for iron. The style of mineralisation and the associated alteration exhibits many characteristics of iron oxidecoppergold iocg type deposits. Metal source and tectonic setting of iron oxidecoppergold iocg.
Widespread ironoxide and copper mineralization during extension produced deposits that have yielded significant copper and gold and minor silver, lead, and zinc. Anomaly source is remanent magnetisation within the volcanics. Genetic models need to consider a number of different ore fluid components that may not all have the same source in an individual ore system, and also that economic iocg deposits may include examples in which key components especially copper had different sources. These nine maps depict the distribution and general ages of quaternary geomorphic surfaces and associated alluvial deposits surrounding the white tank mountains, on the western margin of the phoenix metropolitan area. Iocg workshop, feb 2006 geoscience australia outline 1. Iocg iron oxide copper gold ore deposits goes with porphyries as they are also loosely associated with a large felsic intrusions and form at moderate depths, unlike the dominantly tertiary porphyries iocgs tend to be much older and are generally protoizoic in age from 1. Concentrations up to 1 wt% u are distributed throughout a 3 by 0. Ironoxidecoppergold iocg deposits iocg deposits or ironoxide deposits recently appeared in the classification of metal deposits and still remains quite poorly defined. The iocg knowledge cube is the consolidation of key pieces of work and useful data we have on iocgs, that help recognise, characterise and map these systems aimed at speeding up discovery.
Iron oxide copper gold ore deposits are important and highly valuable concentrations of copper, gold and uranium. During the latter part of the phanerozoic, numerous iron oxide cuau iocg systems formed in parts of the cordillera of north and south america. Within the 33 iocg deposits in the accompanying file, two distinct tonnagegrade populations can be recognized table 1. Iron oxide copper gold ore deposits iocg are important and highly valuable concentrations of copper, gold and uranium ores hosted within iron oxide dominant gangue assemblages which share a common genetic origin. Whilst iocg deposits are unequivocally hydrothermal in origin, models for the genesis of ioa deposits have ranged from magmatic crystallisation e. The prominent hill deposit is a large iron oxide cuau iocg resource located in the olympic iocg province of south australia. Formation of albititehosted uranium within iocg systems. The iron oxide coppergold iocg group of deposits, initially defined following discovery of the giant olympic dam cuuau deposit, has progressively become tooembracing when associated deposits and potential end members or analogs are included. Drift exploration in manitoba manitoba mining and minerals convention november 19, 2009. These deposits are a type of ironoxide copper gold iocg deposit e. Dear colleagues, the discovery of the olympic dam, and its definition as a new type of copper deposit with important resources and other commodities fe, au, u and iron oxidecoppergold iocg deposits, has caused great interest in formation processes and characteristic guidelines that are useful for their exploration. Alteration facies linkages among iron oxide coppergold, iron oxideapatite, and affiliated deposits in the great bear magmatic zone, northwest territories, canada. Barton center for mineral resources, department of geosciences, university of arizona, tucson, arizona 85721, u.
Knowledge we have built up in sa to find iocg deposits should be applied to the curnamona and peak and denison ranges. A descriptive definition of a diverse class cu, au, u, lree, ag, co 3, f, p, ba, co association. Introduction targeting magnetic anomalies for iocg mineralisation is common. Uranium and polymetallic u mineralization hosted within brecciated albitites occurs one kilometer south of the magnetiterich aucobicu nico deposit in the southern great bear magmatic zone gbmz, canada. The deposit is hosted by brecciated sedimentary rocks and structurally underlying lavas of the ca. As a mining interested learner, the geology of porphyry copper deposits is vital to your education. Researchproposal pyriteand pyrrho5teasorevectorsand. These iocgu deposits tend to be hosted in modern or ancestral continental margins, as illustrated by the andean iocg deposits and current interpretation for the tectonic setting of the olympic dam deposit sillitoe, 2003. With an tendancy for being tremendous in size, relatively simple metallurgy and.
The manganese deposits of andhra pradesh are associated with a thick sequence of precambrian rocks, belonging to khondalite and charnockite groups of dharwar supergroup that forms part of 2500 to 3000 m. Iron oxidecoppergold iocg deposits are characterized by abundant lowti iron oxide magnetite and hematite, pervasive hydrothermal alkali nacak alteration, and an extensional tectonic. Alteration vectoring to iocgu deposits in frontier volcano. The tour started in adelaide, south australia on the evening of sunday 21. This report presents the why, where and who of this activity and briefly summarises regionalscale iron oxide alkalialteration attributes typical of. In the last decade, significant progress has been made in the definition, classification, characterization, thereby aiding understanding of the main gold deposit types. The olympic cuau province is a metallogenic province in south australia that contains one of the worlds most significant cuauu resources in the olympic dam deposit. Iocg deposits in the research area, such as the lala and dahongshan deposits, formed in 1. The present work aims to provide an update on the current state of knowledge on the different types of gold deposits models, geodynamics, their mode of formation and. Descriptive and gradetonnage models and database for iron oxide cuau deposits by dennis p. A case study on the use of open file data vs closed file data for gisbased prospectivity analysis t. These deposits are categorized as iron oxide copper gold iocg type, which typically contain magnetite with varying amounts of sulphides which are. Understanding iocg magnetic targets from the inside out rover 3 was an iocg target within the rover field, sw of tennant creek.
Iocg deposits are characterized by their abundance in iron oxides magnetite or hematite, phosphorus, fluorine, barium and rare earths, and their low titanium content. These are somewhat the giants of the ore deposits world. Metasedimentary cobaltcoppergold deposits such as blackbird, idaho, iron oxidecoppergold deposits, and the fiveelement vein deposits such as cobalt, ontario contain different amounts of. Iron oxide coppergold deposits iocg comprise a type of miner. Timing of iron oxidecoppergold iocg mineralization and. Iron oxide copper gold iocg deposits are considered to be metasomatic expressions of large crustalscale alteration events driven by intrusive activity. These ore bodies range from around 10 million tonnes of contained ore, to 4,000 million tonnes or more, and have a grade of between 0. Considering iocg u deposit generation in continental. Integrating a minerals systems approach with machine learning.
The olympic cuau province also hosts a range of other iron oxidecoppergold iocg deposits including prominent hill and carrapateena. Recentcodesreporttogswa tes5nglacicpmsgeochemistryofpyriteasafer5lityand vectoringtoolinexplora5onfor orogenic. Many diverse hydrothermal copper deposits containing iron oxides are classified as iocg deposits. Gawler iocg deposit gradetonnages in perspectivegawler iocg deposit gradetonnages in perspective 0. We conclude that the xianglushan fecu deposits are both similar to and different from typical ironoxide copper gold iocg deposits in terms of alteration styles and hydrothermal mineral assemblages, and are thus best classified as iocglike deposits hosted in submarine volcanicsedimentary rocks. The principal contributors to the global copper inventory, namely porphyry and any associated skarn deposits. Gold in iron oxide coppergold deposits sciencedirect. There are generic models to explain the geophysics of iocgs. Till indicator mineral and geochemical signatures of magmatic nicu deposits, thompson nickel belt m. These iocg u deposits tend to be hosted in modern or ancestral continental margins, as illustrated by the andean iocg deposits and current interpretation for the tectonic setting of the olympic dam deposit sillitoe, 2003. The prominent hill iron oxidecoppergold iocg deposit, located in the gawler craton of south australia, contains ca. Gravity responses of known gawler craton iocg deposits after ozl1, magnetic contours, box size top right the key geophysical anomalies in this region of the northeastern gawler craton are mostly.
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